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A106999 Primes of the form 2x^2+xy+12y^2, with x and y any integer. 1
2, 13, 67, 103, 107, 113, 173, 227, 307, 317, 337, 383, 433, 487, 607, 673, 773, 887, 907, 977, 983, 1093, 1097, 1117, 1193, 1237, 1283, 1427, 1433, 1447, 1523, 1627, 1663, 1723, 1823, 1877, 1933, 1997, 2017, 2143, 2237, 2293, 2377, 2383, 2393 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-95.

LINKS

Vincenzo Librandi and Ray Chandler, Table of n, a(n) for n = 1..10000 [First 1000 terms from Vincenzo Librandi]

N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)

MATHEMATICA

Union[QuadPrimes2[2, 1, 12, 10000], QuadPrimes2[2, -1, 12, 10000]] (* see A106856 *)

CROSSREFS

Sequence in context: A037640 A137967 A045764 * A054566 A038144 A097977

Adjacent sequences:  A106996 A106997 A106998 * A107000 A107001 A107002

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 09 2005

STATUS

approved

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Last modified December 9 06:36 EST 2016. Contains 278963 sequences.